Journal
PHYSICS OF PLASMAS
Volume 20, Issue 11, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4831774
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Funding
- Chinese Academy of the Chinese Academy of Sciences [XDA03030100]
- National Natural Science Foundation of China [11275156, 91026005, 11047010]
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The plasma screening effects of dense quantum plasmas on H+ + H charge exchange and ionization cross sections are calculated by the classical trajectory Monte Carlo method. For charge exchange cross sections, it is found that the screening effects reduce cross sections slightly in weak screening conditions. However, cross sections are reduced substantially in strong screening conditions. For ionization cross sections, with the increase of screening effects, cross sections for low energies increase more rapidly than those for high energies. When the screening effects are strong enough, it is found that ionization cross sections decrease with the increase of incident H+ energy. In addition, the cross sections have been compared with those in weakly coupled plasmas. It is found that in weak screening conditions, plasma screening effects in the two plasmas are approximately the same, while in strong screening conditions, screening effects of dense quantum plasmas are stronger than those of weakly coupled plasmas. (C) 2013 AIP Publishing LLC.
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